#ifndef ARCCTG
#define ARCCTG
#include "Operator.h"
#define DEFINITSIN 1
class ArcCtg: public Operator{
	/*arccotangenta*/
	public:
		long double calcul();
		char *derivare();
		long double calculDerivata();
		char *toString();
		static char *concatTermeni(char *aux1);
		static long double calcul(long double aux1);
};
#endif
